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公开(公告)号：US20190003438A1
公开(公告)日：2019-01-03
申请号：US15635360
申请日：2017-06-28
Applicant: Caterpillar Inc.
Inventor： David Ginter , Chad Koci , Russell P. Fitzgerald , Jonathan W. Anders
Abstract: A fuel injector for an internal combustion engine is disclosed. The fuel injector includes a body defining an orifice. The orifice is configured to provide passage to a fuel into a combustion chamber of the internal combustion engine. The orifice includes an inlet port having a first oval shape and an outlet port having a second oval shape. The second al shape is orthogonal to the first oval shape. Moreover, a transition from the first oval shape to the second oval shape defines a stagnation plane, facilitating an exit of the fuel as a fan spray from the outlet port.
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公开(公告)号：US09856835B1
公开(公告)日：2018-01-02
申请号：US15201381
申请日：2016-07-01
Applicant: Caterpillar Inc.
Inventor： Dana Coldren , Glenn Cox , David Ginter , Alan Stockner , Martin Willi
IPC: F02M37/00 , F02M21/02 , F02D41/30 , F02M39/00 , F02F1/00 , F02F3/00 , F02M39/02 , F02M59/46 , F02M69/04 , F02B17/00 , F02B19/10
CPC classification number: F02M37/0064 , F02B17/005 , F02B19/108 , F02B19/12 , F02D19/061 , F02D19/0647 , F02D19/0665 , F02D19/0681 , F02D19/0689 , F02D19/0692 , F02D19/10 , F02D41/0025 , F02D41/0027 , F02D41/30 , F02D41/3041 , F02D41/3094 , F02F1/00 , F02F3/00 , F02M21/0218 , F02M21/0245 , F02M21/0284 , F02M21/0287 , F02M37/0076 , F02M39/005 , F02M39/02 , F02M57/06 , F02M59/464 , F02M69/046 , Y02T10/125 , Y02T10/32
Abstract: A fuel supply system for a reciprocating-piston engine includes a storage tank; a wall of the storage tank defining a first aperture and a second aperture therethrough; a first fuel injector fluidly coupled with the first aperture of the storage tank via a pressure control module and a first fuel injector supply conduit; a pump fluidly coupled with the second aperture of the storage tank; and a second fuel injector fluidly coupled with an outlet port of the pump via a second fuel injector supply conduit. The pressure control module is configured to maintain a pressure in the first fuel injector supply conduit within a pressure range that includes a pressure value that is less than a pressure inside the storage tank. The pump is configured to maintain a pressure inside the second fuel injector supply conduit that is greater than the pressure inside the first fuel injector supply conduit.
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公开(公告)号：US10895224B1
公开(公告)日：2021-01-19
申请号：US16458886
申请日：2019-07-01
Applicant: Caterpillar Inc.
Inventor： Jaswinder Singh , Michael Bardell , David Ginter , Paul Wang , Patrick Seiler
Abstract: An exhaust system for an internal combustion engine includes an EGR cooler having a heat exchange surface exposed to a flow of exhaust, and a second heat exchange surface. A coolant heat exchanger is fluidly connected to a coolant outlet of the EGR cooler and a coolant pump is fluidly connected to a coolant inlet of the EGR cooler. A condensate collector collects condensate from exhaust, and a condensate pump pumps condensate from the condensate collector to a sprayer to spray condensate onto the second heat exchange surface to vaporize the condensate for discharging out through an outgoing exhaust conduit of the exhaust system.
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公开(公告)号：US20180142632A1
公开(公告)日：2018-05-24
申请号：US15356116
申请日：2016-11-18
Applicant: Caterpillar Inc.
Inventor： Glen Martin , David Ginter , Jaswinder Singh
CPC classification number: F02D41/0027 , F02D41/403 , F02D2041/389 , F02M21/0245 , F02M21/0263 , F02M21/0275 , F02P3/00 , F02P5/04 , F02P5/045 , F02P15/00 , F02P23/04 , Y02T10/32 , Y02T10/44
Abstract: Operating a gaseous fuel engine includes injecting a pilot charge directly into a combustion chamber in an engine, and igniting one spray plume of the pilot charge. A flame front is propagated to other pilot spray plumes to produce an ignition flame for igniting later injected main charge spray plumes. Injection of the pilot and main charges is by way of the same fuel injection orifices.
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公开(公告)号：US11280260B2
公开(公告)日：2022-03-22
申请号：US16912285
申请日：2020-06-25
Applicant: Caterpillar Inc.
Inventor： Paul Sai Keat Wang , Jaswinder Singh , David Ginter
IPC: F02B37/20 , F02D41/32 , F01N13/10 , F02M35/10 , F01P5/10 , F02M21/02 , F02D41/00 , F01N3/04 , F02B37/02 , F01P3/20
Abstract: Operating an engine system includes feeding a flow of exhaust to a turbine in a turbocharger, receiving a load step request, and increasing a speed of rotation of the turbocharger based on an increase in a fueling rate initiated in response to the load step request. Operating the engine system further includes limiting dissipation of heat energy of the flow of exhaust to the turbine to hasten an increase in the speed of rotation of the turbocharger, and increasing dissipation of heat energy from the flow of exhaust after satisfaction of the load step request. Varying of the dissipation of heat energy can be achieved by displacing an insulating fluid in the exhaust manifold with a heat exchange fluid such as water and/or engine coolant.
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Patent Agency Ranking
公开(公告)号：US20210404375A1
公开(公告)日：2021-12-30
申请号：US16912285
申请日：2020-06-25
Applicant: Caterpillar Inc.
Inventor： Paul Sai Keat Wang , Jaswinder Singh , David Ginter
IPC: F02B37/20 , F02D41/32 , F01N13/10 , F02M35/10 , F01P5/10 , F01P3/20 , F02M21/02 , F02D41/00 , F01N3/04 , F02B37/02
Abstract: Operating an engine system includes feeding a flow of exhaust to a turbine in a turbocharger, receiving a load step request, and increasing a speed of rotation of the turbocharger based on an increase in a fueling rate initiated in response to the load step request. Operating the engine system further includes limiting dissipation of heat energy of the flow of exhaust to the turbine to hasten an increase in the speed of rotation of the turbocharger, and increasing dissipation of heat energy from the flow of exhaust after satisfaction of the load step request. Varying of the dissipation of heat energy can be achieved by displacing an insulating fluid in the exhaust manifold with a heat exchange fluid such as water and/or engine coolant.
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公开(公告)号：US10458312B2
公开(公告)日：2019-10-29
申请号：US15656944
申请日：2017-07-21
Applicant: Caterpillar Inc.
Inventor： Paul Wang , David Ginter , Jaswinder Singh , Arnold Kim
Abstract: A system for controlling enriched prechamber stoichiometry includes a prechamber ignition device, and an ignition control system that includes a sensor structured to measure an amount of at least one of CO2 or O2 in a prechamber, an engine timing sensor, a fuel quality sensor, and an electronic control unit. The electronic control unit is structured to receive signals from each of the sensors and determine an air-fuel ratio of the prechamber for comparison with a target air-fuel ratio, and produce a fuel delivery signal based on the comparison.
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公开(公告)号：US12191542B2
公开(公告)日：2025-01-07
申请号：US17804117
申请日：2022-05-26
Applicant: Caterpillar Inc.
Inventor： David Ginter , David T. Montgomery
IPC: H01M8/04 , H01M8/04111 , H01M8/04119 , H01M8/04492 , H01M8/04537 , H01M8/04701 , H01M8/04746
Abstract: A system for detecting humidity level at a cathode of a fuel cell stack including one or more PEMFCs and determining a flooding probability of the stack based on the humidity level, includes a stack including a plurality of PEMFCs, each PEMFC including an exhaust; voltage detector; humidity detector; and controller. The controller may be configured to: receive a voltage as measured at an anode of one or more of the PEMFCs with the voltage detector; determine a humidity level at the exhaust of the one or more of the PEMFCs; and implement one or more actions based on the voltage and the humidity level, the actions including: reduce a load on the PEMFC; increase an air flow at a cathode of the one or more PEMFCs; decrease an inlet humidity at an inlet to the one or more PEMFCs; or increase a temperature of the one or more PEMFCs.
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公开(公告)号：US10260460B2
公开(公告)日：2019-04-16
申请号：US14948041
申请日：2015-11-20
Applicant: CATERPILLAR Inc.
Inventor： Jaswinder Singh , David Ginter , Martin L. Willi , Joel D. Hiltner
Abstract: A system for reforming a fuel may include a first sensor configured to measure an operating parameter of an engine. The operating parameter may correlate to a NOx emission level of the engine. The system may also include a controller in communication with the sensor and a reformer. The controller may be configured to determine a target NOx emission level for the engine. The controller may be also configured to determine a target value of the operating parameter corresponding to the target NOx emission level. The controller may be further configured to control the reformer to reform at least a portion of the fuel based on a difference between the measured value and the target value of the operating parameter.
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公开(公告)号：US20190024571A1
公开(公告)日：2019-01-24
申请号：US15656944
申请日：2017-07-21
Applicant: Caterpillar Inc.
Inventor： Paul Wang , David Ginter , Jaswinder Singh , Arnold Kim
CPC classification number: F02B19/1085 , F02B19/12 , F02D41/0025 , F02D41/1452 , F02D41/1454 , F02D41/30 , F02D2200/0611
Abstract: A system for controlling enriched prechamber stoichiometry includes a prechamber ignition device, and an ignition control system that includes a sensor structured to measure an amount of at least one of CO2 or O2 in a prechamber, an engine timing sensor, a fuel quality sensor, and an electronic control unit. The electronic control unit is structured to receive signals from each of the sensors and determine an air-fuel ratio of the prechamber for comparison with a target air-fuel ratio, and produce a fuel delivery signal based on the comparison.
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